SIDN (Stichting Internet Domeinregistratie Nederland) was founded in 1995 and is headquartered in Arnhem, Netherlands. It is the official registry for .nl, the Dutch ccTLD, operating 6.4M+ domains as one of Europe's largest ccTLDs.
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Verisign is the world's largest domain registry, operating .com and .net plus 2 of the internet's 13 root server pairs, forming the core of global domain infrastructure.
Vercara (formerly Neustar security business/UltraDNS), founded in 1999 and headquartered in Leesburg, Virginia, is a leading enterprise DNS, DDoS protection, CDN, and WAF provider whose UltraDNS is adopted by many Fortune 500 companies.
Neustar (now part of TransUnion/Optum), founded in 1998 and headquartered in the United States, operates .biz and .us top-level domains while providing enterprise DNS, DDoS protection, and brand protection solutions.
CIRA (Canadian Internet Registration Authority) is the official .ca ccTLD registry operator, founded in 1998 and headquartered in Ottawa, Canada. It manages 3.4M+ .ca domains and provides the free Canadian Shield DNS security service.
SafeNames is a UK enterprise domain management and brand protection provider founded in 1999, offering global trademark monitoring, domain portfolio optimization, and DNS security controls for Fortune 500 companies.
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1 results shown2026 Domain Management Security Guide: 8 key strategies from registration to renewal
Domains are critical digital assets. This guide covers 8 essential domain security strategies from registrar selection to renewals.